Building construction foundation pit guardrail
By introducing sensor-guided protective devices and drive modules into the foundation pit guardrail, the automatic raising and lowering of the movable guardrail is realized, solving the problem of inconvenient access for workers and improving construction efficiency.
Patent Information
- Application Number
- CN202520211115.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-11
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-02-11
AI Technical Summary
The existing foundation pit guardrails make it inconvenient for workers to enter and exit when construction materials need to be moved, which affects construction efficiency.
Design a pit guardrail that includes a fence assembly, a connecting assembly, and a sensor-based protective device. The guardrail uses a motion detection sensor to detect when a worker approaches and activates a drive module to raise the movable guardrail so that the worker can enter. When the worker moves away, the guardrail automatically lowers, enabling convenient entry and exit.
This improved the ease of movement for workers and increased construction efficiency.
Smart Images

Figure CN223739154U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit protection technology, and in particular to a foundation pit guardrail for building construction. Background Technology
[0002] An excavation pit is a pit dug out at the designed location of the foundation, specifying the base elevation and the foundation plan dimensions. Excavation pits are temporary works designed to provide a space for foundation construction work to be carried out according to the design specifications. The excavation volume of an excavation pit is calculated based on its volume. Generally, a deep excavation pit refers to one with an excavation depth greater than or equal to 5 meters. To prevent accidents, protective railings are typically installed around the excavation pit, requiring a specific type of excavation pit guardrail.
[0003] When using existing foundation pit guardrails, especially in scenarios where construction materials need to be moved, workers need to manually open the guardrail gates, which makes entry and exit inconvenient and affects construction efficiency. Therefore, a structure needs to be designed to solve this problem. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a construction pit guardrail that facilitates entry and exit and improves efficiency.
[0005] The present invention adopts the following technical solution:
[0006] A construction pit guardrail includes several fence components, connecting components, and a sensing and protective device. The fence components are sequentially connected. The connecting components are connected to adjacent fence components. The sensing and protective device is located between the fence components and includes a first post, a second post, a fixed protective net, a movable protective net, a motion detection sensor, and a drive module. The first and second posts are connected to both sides of the fixed protective net. The fixed protective net is fixedly installed above the posts. The movable protective net is located in front of the posts and is movably connected to them. The motion detection sensor is connected below the movable protective net and electrically connected to the drive module. The drive module is used to drive the movable protective net to rise and fall.
[0007] A further improvement to the above technical solution is that the fence assembly includes a fence frame and a fence mesh; the fence frame has an internal mounting cavity, and the bottom of both sides of the fence frame are respectively provided with extended mounting posts; the fence mesh is connected to the mounting cavity.
[0008] A further improvement to the above technical solution is that the connecting component includes a connecting base block, and the four corners of the connecting base block are respectively provided with insertion holes, which are connected to the extension mounting post.
[0009] A further improvement to the above technical solution is that the central connection of the connecting bottom block is provided with a fixed slot, and the number of the fixed slots is set to four.
[0010] A further improvement to the above technical solution is that a first connecting piece is provided on one side of the movable protective net, and a second connecting piece and a third connecting piece are provided on the side of the movable protective net opposite to the first connecting piece, with the second connecting piece located above the third connecting piece.
[0011] A further improvement to the above technical solution is that the drive module includes a lifting cylinder, a linear guide rail, a first slider, and a second slider; the lifting cylinder is located on one side of the movable guardrail and connected to a first connecting piece; the linear guide rail is located on the side of the movable guardrail away from the lifting cylinder and is movably connected to the first slider and the second slider; the first slider is connected to the second connecting piece; and the second slider is connected to the third connecting piece.
[0012] A further improvement to the above technical solution is that the lifting cylinder is installed on the front side of the first column, and the linear guide rail is installed on the front side of the second column.
[0013] A further improvement to the above technical solution is that the number of motion detection sensors is set to three, and the three motion detection sensors are fixed at equal intervals below the movable protective netting by L-shaped mounting plates.
[0014] A further improvement to the above technical solution is that a first mounting bracket is connected to the bottom of the first column, and a plurality of first mounting screws are connected to the first mounting bracket.
[0015] A further improvement to the above technical solution is that a second mounting bracket is connected to the bottom of the second column, and a plurality of second mounting screws are connected to the second mounting bracket.
[0016] The beneficial effects of this utility model are as follows:
[0017] This utility model includes a fence assembly and a connecting assembly. The fence assembly is connected sequentially by the connecting assembly to form a protective ring. A sensor-operated protective device is also included. During operation, the fence assembly forms a protective ring through the connecting assembly, and the sensor-operated protective device serves as an entrance and exit. When a worker approaches the sensor-operated protective device, the motion detection sensor detects the approaching object and activates the drive module, causing the movable protective net to rise, allowing the worker to enter. When the worker moves away from the motion detection sensor, the movable protective net descends, closing the enclosure. This effectively improves the convenience of entry and exit and increases construction efficiency. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of the construction pit guardrail of this utility model;
[0019] Figure 2 for Figure 1 A schematic diagram of the connection structure of the fence components and connecting components of the construction pit guardrail;
[0020] Figure 3 for Figure 2 A magnified view of a section of the fence component and the circle A of the connecting component;
[0021] Figure 4 for Figure 1 A schematic diagram of the induction protection device for the construction pit guardrail;
[0022] Figure 5 for Figure 4 A magnified view of circle B on the sensor protection device;
[0023] Figure 6 for Figure 4 A schematic diagram of the drive module of the inductive protection device;
[0024] Figure 7 for Figure 4 A schematic diagram of the structure of the first column, the second column, and the fixed protective net of the induction protection device.
[0025] The numbers on the map are:
[0026] 10. Fence assembly; 11. Fence frame; 12. Fence netting; 13. Mounting cavity; 14. Extension mounting post; 20. Connecting assembly; 30. Inductive protection device; 31. First post; 32. Second post; 33. Fixed protective netting; 34. Motion detection sensor; 35. L-shaped mounting plate; 40. Movable protective netting; 41. First connecting plate; 42. Second connecting plate; 43. Third connecting plate; 50. Drive module; 51. Lifting cylinder; 52. Linear guide rail; 53. First slider; 54. Second slider; 60. Connecting base block; 61. Insertion hole; 62. Fixing slot; 70. First mounting bracket; 71. First mounting screw; 80. Second mounting bracket; 81. Second mounting screw. Detailed Implementation
[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0028] In the description of this utility model, it should be noted that the terms "vertical direction," "up," "down," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0029] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] like Figures 1 to 7 The diagram illustrates an embodiment of the present invention, relating to a construction pit guardrail, comprising a plurality of guardrail components 10, connecting components 20, and a sensing and protective device 30; the plurality of guardrail components 10 are sequentially connected; the connecting components 20 are respectively connected to two adjacent guardrail components 10; the sensing and protective device 30 is disposed between the plurality of guardrail components 10, and the sensing and protective device 30 includes a first post 31, a second post 32, a fixed protective net 33, a movable protective net 40, a motion detection sensor 34, and a drive module 50; the first post 31 and the second post 32 are respectively connected to both sides of the fixed protective net 33; the fixed protective net 33 is fixedly installed above the post; the movable protective net 40 is disposed in front of the post and movably connected to the post; the motion detection sensor 34 is connected below the movable protective net 40 and electrically connected to the drive module 50; the drive module 50 is used to drive the movable protective net 40 to rise and fall.
[0031] Furthermore, the fence assembly 10 includes a fence frame 11 and a fence mesh 12; the fence frame 11 has an internal mounting cavity 13, and extended mounting posts 14 are respectively provided on the bottom of both sides of the fence frame 11; the fence mesh 12 is connected to the mounting cavity 13. Specifically, the fence assembly 10, which includes the fence frame 11 and the fence mesh 12, is connected in sequence to form a protective ring to prevent safety accidents in the foundation pit.
[0032] Furthermore, the connecting component 20 includes a connecting base block 60, with insertion holes 61 at each of its four corners. The insertion holes 61 are connected to the extension mounting posts 14. Specifically, multiple insertion holes 61 are provided to facilitate the insertion of the extension mounting posts 14, effectively securing the fence frame 11 to the connecting base block 60 and improving the stability of the fence component 10.
[0033] Furthermore, the connecting base block 60 has a centrally connected fixing slot 62, and the number of fixing slots 62 is set to four. Specifically, after the insertion hole 61 is inserted into the extension mounting post 14, the fixing slots 62 are fixed to the ground with screws, effectively improving the convenience of use.
[0034] Furthermore, a first connecting piece 41 is provided on one side of the movable protective net 40, and a second connecting piece 42 and a third connecting piece 43 are provided on the side of the movable protective net 40 opposite to the first connecting piece 41, with the second connecting piece 42 located above the third connecting piece 43.
[0035] Further, the drive module 50 includes a lifting cylinder 51, a linear guide rail 52, a first slider 53, and a second slider 54. The lifting cylinder 51 is located on one side of the movable protective net 40 and connected to the first connecting piece 41. The linear guide rail 52 is located on the side of the movable protective net 40 opposite to the lifting cylinder 51 and is movably connected to the first slider 53 and the second slider 54. The first slider 53 is connected to the second connecting piece 42. The second slider 54 is connected to the third connecting piece 43. The lifting cylinder 51 is installed on the front side of the first column 31, and the linear guide rail 52 is installed on the front side of the second column 32. Specifically, the lifting cylinder 51 drives the movable protective net 40 to rise and fall, and causes the other side of the movable protective net 40 to move on the linear guide rail 52 via the first slider 53 and the second slider 54, thereby realizing the automated driving of the movable protective net 40.
[0036] Furthermore, the number of motion detection sensors 34 is set to three, and the three motion detection sensors 34 are fixed at equal intervals below the movable safety net 40 by L-shaped mounting pieces 35. Specifically, multiple motion detection sensors 34 are set to detect the approach of workers or objects so as to control the movable safety net 40 to rise and fall under the drive of the lifting cylinder 51, ensuring convenient entry and exit.
[0037] Furthermore, the bottom of the first column 31 is connected to a first mounting bracket 70, and the first mounting bracket 70 is connected to a plurality of first mounting screws 71; the bottom of the second column 32 is connected to a second mounting bracket 80, and the second mounting bracket 80 is connected to a plurality of second mounting screws 81. Specifically, the first column 31 and the second column 32 are respectively connected to the first mounting bracket 70 and the second mounting bracket 80, and are respectively fixed to the ground by the first mounting screws 71 and the second mounting screws 81, effectively improving the stability of use.
[0038] This utility model includes a fence assembly 10 and a connecting assembly 20. The fence assembly 10 is connected sequentially through the connecting assembly 20 to form a protective ring. A sensing protection device 30 is also provided. During operation, the fence assembly 10 forms a protective ring through the connecting assembly 20, and the sensing protection device 30 serves as an entrance and exit. When a worker approaches the sensing protection device 30, the motion detection sensor 34 detects the approaching object and activates the drive module 50, which drives the movable protective net 40 to rise, allowing the worker to enter. When the worker moves away from the motion detection sensor 34, the movable protective net 40 is driven to descend, closing the enclosure. This effectively improves the convenience of entry and exit and increases construction efficiency.
[0039] The above description merely illustrates the preferred technical solution of this utility model, and while the description is relatively specific and detailed, it should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and this utility model also intends to include these modifications and variations.
Claims
1. A construction site trench guard characterised in that, The application relates to a fence assembly, which comprises fence components, connecting components and an inductive protection device, wherein the fence components are connected in sequence, the connecting components are connected to adjacent fence components, the inductive protection device is arranged between the fence components, the inductive protection device comprises first and second vertical columns, a fixed guard net, a movable guard net, a movement detection sensor and a driving module, the first and second vertical columns are connected to the two sides of the fixed guard net, the fixed guard net is fixedly arranged above the vertical columns, the movable guard net is arranged in front of the vertical columns and is movably connected to the vertical columns, the movement detection sensor is connected below the movable guard net and is electrically connected to the driving module. The driving module is used for driving the movable guard net to ascend and descend.
2. The construction excavation fence according to claim 1, wherein The fence component comprises a fence frame body and a fence net, an installation cavity is arranged in the fence frame body, extension installation columns are arranged at the bottom of the two sides of the fence frame body, and the fence net is connected to the installation cavity.
3. The construction excavation fence according to claim 1, wherein The connecting component comprises a connecting bottom block, and plug-in holes are arranged at the four corners of the connecting bottom block and are connected to the extension installation columns.
4. The construction excavation barrier according to claim 3, wherein Four fixed grooves are arranged in the center of the connecting bottom block.
5. The construction excavation barrier according to claim 1, wherein One side of the movable guard net is provided with a first connecting piece, the side, away from the first connecting piece, of the movable guard net is provided with a second connecting piece and a third connecting piece, and the second connecting piece is arranged above the third connecting piece.
6. The construction excavation barrier according to claim 1, wherein The driving module comprises a lifting cylinder, a linear guide rail, a first sliding block and a second sliding block, the lifting cylinder is arranged at one side of the movable guard net and is connected to the first connecting piece, the linear guide rail is arranged at the side, away from the lifting cylinder, of the movable guard net and is movably connected to the first and second sliding blocks, the first sliding block is connected to the second connecting piece, and the second sliding block is connected to the third connecting piece.
7. The construction excavation barrier according to claim 6, wherein The lifting cylinder is arranged at the front side of the first vertical column, and the linear guide rail is arranged at the front side of the second vertical column.
8. The construction excavation barrier of claim 1, wherein, The number of the movement detection sensors is three, and the three movement detection sensors are fixed below the movable guard net through L-shaped installation pieces.
9. The construction excavation barrier of claim 1, wherein, The bottom of the first vertical column is connected with a first installation support, and the first installation support is connected with a plurality of first installation screws.
10. The construction excavation barrier of claim 1, wherein, The bottom of the second vertical column is connected with a second installation support, and the second installation support is connected with a plurality of second installation screws.